His fiancee knitted him a pullover.他的未婚妻为他织了一件套头毛衣.His fiancee is a promissing young terpsichorean.他的未婚妻是个有前途的青年舞蹈家.The whole incident had upset me and my fiancee terribly.整个事件搞得我和未婚妻都心烦意乱。...
公历最初是以罗马人的儒略历为基础制定的。The Christian calendar was originally based on the Julian calendar of the Romans.天文学上就是借助儒略日来算的.This is done in astronomy, with the help of the Julian day.然后在格儒弗大街向左拐, 在右边找博物馆.Then, turn left on Grove...
碳的诸多同位素the many isotopes of carbon碳的化合价是4价。Carbon has a valency of 4.通过环氧化和氧化就得到外消旋的含十八个碳的昆虫返动激素.Epoxidation and oxidation gave the racemic C 18 - juvenile hormone....